Helpppp
four triangles are shown.
based on these triangles,which statement is true
A.w=75,because 45+60=105 and 180-75=75
B.w=105,because 180-(45+60)=75 and 180-75=105
C.w=285,because 45+60=105 and 105+180=285
D.w=165,because 180-60=120 and 120+45=165